1. Product Introduction

• Product Overview:

The QFN series freeze dryer includes: laboratory economical N series vacuum freeze dryer (QFN-DGJ-N series), economical FE series electric heating pilot vacuum freeze dryer (QFN-DGJ-FE series) There are five major categories of vacuum freeze dryers, including F-series silicone oil heating production type (QFN-DGJ-F series), small-scale production/pilot production/freeze-drying area greater than 3 square meters production type (QFN-DGJ-GLZ series), and food grade vacuum freeze dryers (QFN-DGJ-FD series), totaling dozens of models that can meet the needs of different users.

• Application areas:

Logistics, biology, medicine, chemistry, pathology, zoology, forensic identification, food and health products, archaeology, printed materials, geology, etc.

• Application scope:

Suitable for freeze-drying of bacteria, virus plasma, serum, antibodies, vaccines, drugs, microorganisms, yeast, cosmetics, health products, Chinese herbal medicines, chemicals, and plant extracts for biological research.

• Application principle:

Vacuum freeze-drying is a technology that utilizes the principle of sublimation for drying. It involves rapidly freezing the material to be dried at low temperatures, and then directly sublimating the frozen water molecules into water vapor under the vacuum environment used. The product obtained from freeze-drying is called Lyophilizer, and this process is called freeze-drying. The substance is always at a low temperature (frozen state) before drying, and ice crystals are evenly distributed in the substance. The sublimation process will not be concentrated due to dehydration, avoiding the side effects such as foam generated by water vapor, oxidation, etc. The dry substance is in the form of dry sponge with many pores and basically unchanged volume, which is very easy to dissolve in water and recover to the original state, to prevent the physical and biological denaturation of the dry substance to the greatest extent.

• 2. Product classification introduction

• QFN-DGJ-N series - laboratory economical vacuum freeze dryer

• Product Features

• 7-inch color LCD screen display;

• LCD display drying curve;

• The cold trap has a pre freezing function, saving the cost of a low-temperature refrigerator;

• The secop science popularization compressor has low noise, high power, and long service life;

• Mixing environmentally friendly refrigerants, with a large green and environmentally friendly cooling capacity;

• Built in heat exchanger effectively reduces the temperature of the cold trap and has strong water capture ability;

• Anti backflow oil vacuum pump to prevent material contamination;

• Transparent bell shaped drying chamber, safe and intuitive;

• Full range defrosting function for power distribution;

• Optional nitrogen inflation valve.